Robert Griffin III recorded a high completion percentage in his rookie season only to taper off in Year 2.
Robert Griffin III recorded a high completion percentage in his rookie season only to taper off in Year 2. Jeff Haynes AP
Robert Griffin III recorded a high completion percentage in his rookie season only to taper off in Year 2. Jeff Haynes AP

History shows sophomore seasons can be unpredictable in NFL

September 09, 2017 06:04 PM